If a queue is implemented using a fixed-size array, what condition leads to a 'queue overflow' situation?
Trying to sort the elements in the queue.
Trying to remove an element from an empty queue.
Trying to add an element to a full queue.
Trying to access an element beyond the queue's capacity.
In a circular queue implemented using an array of size 5, the front is at index 3, and the rear is at index 1. What happens after two dequeue operations?
The queue becomes empty.
The front moves to index 0, and the rear moves to index 4.
The front moves to index 0, and the rear remains at index 1.
The front moves to index 1, and the rear moves to index 4.
What data structure is used to implement a priority queue?
Array
Heap
Stack
Linked List
What is the worst-case time complexity of searching for an element in a queue implemented using a linked list?
O(log n)
O(1)
O(n log n)
O(n)
In an array-based queue implementation, what happens when you dequeue from an empty queue?
The queue remains unchanged.
The last element is removed.
The first element is removed.
An underflow condition occurs.
Imagine a print queue in a busy office environment. Which data structure, implemented using an array, would be most suitable for managing this print queue effectively?
Binary Tree
Hash Table
Circular Queue
When would it be more advantageous to use a linked list implementation of a queue over an array-based implementation?
When the maximum number of elements in the queue is known in advance.
When memory usage needs to be tightly controlled.
When dealing with a small, fixed number of elements.
When dynamic resizing and the potential for overflow are concerns.
What is the time complexity of enqueue and dequeue operations in a well-implemented array-based queue?
It depends on the size of the array.
O(n), where n is the number of elements in the queue.
What is the maximum number of elements a circular queue of size 'n' can hold?
n + 1
n - 1
n
It depends on the implementation
In which of these scenarios is a queue data structure a suitable choice?
Handling requests in a multi-threaded environment based on their arrival order.
Managing function calls in a recursive program.
Storing a list of recently opened files in an operating system.
Implementing an undo/redo functionality in a text editor.